Edit: mixed up this thread with OP's other one in this forum. Edited to make sense. :p
I'm assuming the reason you want to ctb immediately is the relationship issue you mentioned in your other thread. You describe a very upsetting situation, but it doesn't follow that you "deserve" to die. Having ambivalent feelings about some romantic partnership in particular or monogamy in general is not punishable by death in any country on Earth.
You got some very harsh feedback in the relationship thread, but nobody has commanded you to ctb, or even suggested that you do so. (My apologies if this sort of thing was originally in the "redacted" post in the "I need to die" thread. Encouraging suicide is literally #1 on our "Don't" list.) This site is not a morality court that decides who is worthy of life and who isn't. The information here is also not intended for people liable to make poorly-thought-out suicide attempts while in the grip of high emotion.
It's not my business why you have Inderal and Vistaril, but I know both can be used to reduce anxiety. What if you took a normal dose of those and tried distracting yourself for an hour or so? Worst case, suicide will still be an option later on.